Test Characteristics for Drinking Water IS-10500 in India (1991 and 1993) | ||
Substance or Characteristic | Requirement (Desirable Limit) | Permissible Limit in the Absence of Alternative Source |
Essentail Characteristic | ||
Colour hazen Units | ||
Odour | ||
Taste | ||
Turbdity NTU Max | ||
pH | ||
Total Hardness as CaCO3 mg/l | ||
Iron as Fe mg/l | ||
Chlorides as Cl mg/l | ||
Residual free Chlorine mg/l | ||
Desirable Characteristics | ||
Dissolved solids, mg/l | ||
Clacium as Ca, mg/l | ||
Magnesium as Mg, mg/l | ||
Copper as Cu, mg/l | ||
Sulphate as SO4, mg/l | ||
Nitrate as NO3, mg/l | ||
Nitrate as NO3, mg/l | ||
Fluoride as F, mg/l | ||
Phenolic compounds as C6H5 OH, mg/l | ||
Mercury as Hg, mg/l | ||
Cadmium as Cd, mg/l | ||
Selenium as Se, mg/l | ||
Arsenic as AS, mg/l | ||
Cyanide as CN, mg/l | ||
Lead as Pb, mg/l | ||
Zinc as Zn, mg/l | ||
Anionic detergents as MBAS, mg/l | ||
Chromium as CrNd.6, mg/l | ||
Polynuclear Aromatic Hydrocarbons as PAH, mg/l | ||
Mineral oil, mg/l | ||
Pesticides, mg/l | ||
Radioactive Materials | ||
A. Alpha emitters, Bq/1 | ||
B. Beta emitters, pci/1 | ||
Alkalinity, mg/l | ||
Aluminium as A1, mg/l | ||
Boron as B, mg/l |